Type - this determines whether the map
acts as a reflection map or a refraction map. Note that the VRayMap does not
automatically detect this type; you need to set this manually.
Reflect - when this option is chosen
VRayMap will act like a reflection map. Then the Reflection params
section can be used for controlling the settings of the map (Changing
settings in Refraction params section will have no effect on the
map).
Refract - when this option is chosen
VRayMap will act like a refraction map. Then the Reraction params
section can be used for controlling the settings of the map (Changing
settings in Refraction params section will have no effect on the
map).
Reflection params
Filter color - multiplier for the
reflections. Do not use the spinner in the material to set the strength of
reflections. Use this filter color instead (photon map will not be correct
otherwise).
Reflect on back side - this checkbox
forces V-Ray to trace reflections always. Using this option in conjunction
with a refraction map increases rendering times.
Glossy - turns glossy (blurry) reflections
on.
Glossiness - the glossiness of the
material. A value of zero means extremely blurry reflections. Higher
values makes reflections sharper.
Subdivs - controls the number of rays
sent out to evaluate the glossy reflection. More rays mean smoother
reflection, but more rendering time.
Max depth - maximum ray depth for the map.
The map will return the Exit color for rays
of greater depth.
Cutoff thresh - reflections which
contribute little to the final value of an image sample will not be traced.
The cut-off threshold sets the minimum contribution for a reflection to be
traced.
Exit color - the color to be returned when
the maximum ray depth has been reached but the reflection has not been
computed completely.
Refraction params
Filter color - multiplier for the
refraction. (see Filter color in
Reflection params section).
Glossy - turns glossy (blurry) refractions
on.
Glossiness - (see Glossiness in
Reflection params section).
Subdivs - (see Subdivs in
Reflection params section).
Fog color - V-Ray allows you to fill
refractive objects with fog. This is the color of the fog.
Fog multiplier -multiplier for the
Fog color. Smaller values produce more
transparent fog.
Max depth - the maximum ray depth for the
refractions. (see Max depth in
Reflection params section)
Cutoff thresh - (see
Cutoff thresh in
Reflection params section)
Exit color - (see
Exit color in Reflection params section)
